Ejector for collapsible tubes



1935 w. WHITEMAN 1,987,428

EJECTOR FOR COLLAPSIBLE TUBES Filed June 4, 1934 ATTORN EY BY F .5...

Patented Jan. 8, 1935 UNITED STATES PATENT OFFICE 3 Claims.

This invention relates to new and useful improvements in an ejector forcollapsible tubes.

The invention has for an object the construction of an ejector which ischaracterized by a sheet metal shank for attachment across one face atthe rear of a collapsible tube, and provided with enlarged ends forlocation slightly outside of the sides of the tube, whereby either ofthe ends may be turned for the purpose of winding up the collapsibletube for the discharge of its contents.

More particularly the invention has particular reference to anarrangement at the junction of the shank with the enlarged ends wherebythe ejector is reinforced at these areas so as to prevent possibility ofbending during the ejecting operation.

Still further the invention proposes an arrangement whereby anotherembodiment of ejector is characterized by an arrangement wherein theenlarged ends are normally bent behind the other side of the tube so asto reduce the compass of the tube and ejector during manufacture,storing and shipping.

Still further the invention also proposes an arrangement whereby whenthe enlarged ends are bent into operative positions, reinforcementstrips which are adjustably arranged upon the shank are adapted to bemoved intothe operative 30 positions for reinforcing the junctions ofthe shank with the enlarged ends.

Still further the invention proposes the construction of an article asmentioned which is simple and durable and which may be manufactured andsold at a reasonable cost.

For further comprehension of the invention, and of the objects andadvantages thereof, reference will be had to the following descriptionand accompanying drawing, and to the appended claims in which thevarious novel features of the invention are more particularly set forth.

In the accompanying drawing forming a material part of this disclosure:-

Fig. 1 is a front elevational view of a collapsible tube with an ejectoraccording to this invention.

Fig. 2 is a plan view of Fig. i.

Fig. 3 is a fragmentary enlarged sectional view taken on the line 3--3of Fig. 1.

Fig. 4 is an elevational view of a collapsible tube and ejectorconstructed according to a modification of this invention.

Fig. 5 is a plan view of Fig. 4.

Fig. 6 is a fragmentary view similar to the upper portion of Fig. 4 butillustrating the ejector in operative position.

Fig. 7 is a developed view of an ejector for use on a collapsible tube.

Fig. 8 is a fragmentary side elevational view of a collapsible tubeshowing the ejector illustrated in Fig. '7 applied.

Fig. 9 is a fragmentary front elevational view of a collapsible tubewith an ejector according to another embodiment of this invention.

The ejector for tubes comprises a sheet metal shank 10 for attachmentacross one side 11 of the rear 11 of a. collapsible tube 11, and havingenlarged ends 12 for location slightly outside of the edges 11 of thecollapsible tube. The junctions 13 of the shank 10 with the enlargedends 12 are reinforced by reason of being arched or channelled orsimilarly shaped as clearly illustrated in Figs. 1-3, particularly seeFig. 3 wherein a cross-sectional view is shown. The shank 10 is attachedby several rivets 14 to the collapsible tube, these rivets engagingthrough the shank and through the ends of the tube.

The contents of the tube may be disposed as required by first removingthe closer cap of the tube and then turning the ejector by gripping oneof the enlarged ends so as to wind up the rear of the collapsible tubeand so force the material from the tube. It is a feature of theconstruction that the junctions 13 are reinforced merely by the propershaping of the metal so that a comparatively light, sheet of materialmay be used for the manufacture of the ejector, and at the same timesufllcient rigidity and stiffness be provided to prevent bending anddeforming of the ejector during use.

In Figs. 4-6 inclusive another embodiment of the invention has beendisclosed which comprises a sheet metal shank 10 for attachment acrossone side 11 of the rear end 11' of a collapsible tube 11 and havingenlarged ends 12 normally bent behind the said side 11 so as to reducethe compass of the device when manufactured, when stored, and whenshipped.

The junctions 13 of the shank 10 and the enlarged ends 12 are plain, notchannelled as previously described so as to be readily bendable so thatthe enlarged ends 12 may be bent to extended positions from their normalpositions as illustrated in Fig. 4. In Fig. 6 the enlarged ends areshown in the extended operative position.

Reinforcement strips 16 are adjustably mounted upon the shank 10 forconnection with the enlarged ends 12 when the enlarged ends are in theextended positions so as to reinforce the junctions to prevent anypossible bending during the use of the ejector. More particularly thestrips 16 are formed with elongated slots 1'! through which the rivets14 which attach the shank 10 to the tube extend.

The arrangement is such that frictionally the strips 16 maintain eitherretracted positions as illustrated in Fig. 4 or they may be manuallyextended. In the extended positions the free ends 16' are bent throughopenings 12 formed in the enlarged ends 12 so as to reinforce thejunctions 13'. In Fig. 6 the reinforcement strips 16 are shown in theirextended positions and in positions in which the ends 16' are engagedthrough the openings 12- and clamped down upon the material of theenlarged ends adjacent the opening.

In Figs. 7 and 8 another embodiment of the invention has been disclosedwherein an ejector for a collapsible tube is shown and comprises a sheetmetal shank 10 having a bendable side portion 10 adapted to be clampedupon the rear 11 of a collapsible tube 11'. The dot and dash lines 19 inFig. '7 indicate the line of bending of the metal shank.

The ends of the metal shank 10 are formed with enlarged portions 12 forlocation slightly outside of the edges of the collapsible tube. It iscustomary to close the rear ends of the collapsible tube with a metalstrip which is bent along a longitudinal center line and clamped uponthe end of the collapsible tube. The form of the invention illustratedin Figs. fl and 8 is very similar to the clamp used, and is intended tobe substituted for such a clamp strip and differs only in the provisionof the enlarged ends 12 whereby the device comprises an ejector aspreviously described relative to the other forms.

In Fig. 9 another embodiment of the invention has been disclosed whereinthe ejector comprises a sheet metal shank 10 for attachment across oneside 11 of the rear 11 of a collapsible tube 11' and is associated withenlarged ends 12 which are pivotally connected thereon. Moreparticularly pintle pins engage through adjacent portions of the ends ofthe shank 10 and the enlarged ends 12 and serve to pivotally connectthese parts. The arrangement is such that the ends 12 may be extended asillustrated in Fig. 9 in which positions the device is in operativeposition-ready for use. During shipping and when packed the device maybe placed with the enlarged ends 12'- folded inwards so as to reduce thecompass.

While I have shown and described the preferred embodiment of myinvention, it is to be understood that I do not limit myself to theprecise construction herein disclom and the right is reserved to allchanges and modifications coming within the scope of the invention asdefined in the appended claims.

Having thus described my invention, what I claim as new, and desire tosecure by United States Letters Patent is:-

1. An ejector for collapsible tubes, comprising a sheet metal shank forattachment across one face of the rear end of a collapsible tube andhaving enlarged ends for location slightly outside of the sides of saidtube, and the junctions of said shank and the enlarged ends beingreinforced, and rivets for the attachment of the shank upon the rear endof said collapsible tube.

2. An ejector for tubes, comprising a sheet metal shank for attachmentacross one face of the rear end of a collapsible tube and havingenlarged ends normally bent behind the other side of said tube, andreinforcement strips adjustably mounted on said shank for connectionwith said enlarged ends in extended positions of the enlarged ends forreinforcing the Junctions of the shank and the enlarged ends.

3. An ejector for tubes, comprising a sheet metal shank for attachmentacross one face of the rear end of a collapsible tube and havingenlarged ends normally bent behind the other side of said tube, andreinforcement strips adjustably mounted on said shank for connectionwith said enlarged ends in extended positions of the enlarged ends forreinforcing the junctions of the shank and the enlarged ends, saidreinforcement strips having elongated apertures engaged by rivets bywhich the strips are adjustably supported so as to be extendable and theouter ends of said reinforcement strips being engageable throughopenings in said enlarged ends and clampable upon the material adjacentsaid openinss.

WILLIAM WHITEMAN.

